
Recherche avancée
Autres articles (72)
-
MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 est la première version de MediaSPIP stable.
Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
Mise à disposition des fichiers
14 avril 2011, parPar défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...) -
Librairies et logiciels spécifiques aux médias
10 décembre 2010, parPour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)
Sur d’autres sites (14202)
-
Is there any way to detect and cut out the real video part from a full video
27 octobre 2020, par Jemma.ZNot sure whether I can explain my question. I have a bunch of video material. Some of them are recorded videos from mobile phones. When people record the video on their phone, their produced video may contain more than just the recorded video I need. I need to detect and cut out the useless part. The useless part would be still while the part I need is changing and on the play.


I do not know whether there is any way for me to do it. I can write some code but I just do not know what libraries to use. Does it have something to do with OpenCV. Or is there a way to solve it with ffmpeg ?


Hopefully someone can give me some ideas. Thanks a lot.


-
How to use FFmpeg and GeForce Hardware to decode and encode 4K MKV movie to 1080p [closed]
27 janvier 2023, par slyfox1186I am struggling with the instruction provided to convert a 4k Movie to 1080p so I can run it easier on my plex server.


I have a Geforce 1080Ti and have enable cuda and all the necessary options when building ffmpeg.


I keep getting a weird error and I am stuck at the below point.


Here is my code that I am working on currently


REM @ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION
COLOR 0A
TITLE CONVERT 4K TO 1080P USING GEFORCE HW

PUSHD "%~dp0"

SET "FF=C:\MAB\local64\bin-video\ffmpeg.exe"

FOR /R %%G IN (*.mkv) DO (
 "%FF%" -hide_banner -hwaccel cuda -y -i "%%~dpnG.mkv" -c:v h264_nvenc -preset slow -pix_fmts yuv420p10le -vf scale='1920:-1' -c:a copy "%%~dpnG(1080p).mkv"
 )

ECHO.
PAUSE
EXIT




below is the error output I get when running the above command


Guessed Channel Layout for Input Stream #0.1 : 5.1
Input #0, matroska,webm, from 'Mulan_2020.mkv':
 Metadata:
 title : mandtv.net
 encoder : libebml v1.4.0 + libmatroska v1.6.2
 creation_time : 2020-09-10T05:08:02.000000Z
 Duration: 01:55:08.70, start: 0.000000, bitrate: 16704 kb/s
 Stream #0:0(eng): Video: hevc (Main 10), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x1608 [SAR 1:1 DAR 160:67], 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc (default)
 Metadata:
 BPS-eng : 15933746
 DURATION-eng : 01:55:08.652000000
 NUMBER_OF_FRAMES-eng: 165642
 NUMBER_OF_BYTES-eng: 13760089087
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:1(eng): Audio: eac3, 48000 Hz, 5.1, fltp (default) (forced)
 Metadata:
 title : En
 BPS-eng : 768000
 DURATION-eng : 01:55:08.704000000
 NUMBER_OF_FRAMES-eng: 215897
 NUMBER_OF_BYTES-eng: 663235584
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:2(eng): Subtitle: subrip
 Metadata:
 title : English
 BPS-eng : 35
 DURATION-eng : 01:50:28.504000000
 NUMBER_OF_FRAMES-eng: 1150
 NUMBER_OF_BYTES-eng: 29135
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:3(ger): Subtitle: subrip
 Metadata:
 title : de
 BPS-eng : 2
 DURATION-eng : 00:03:07.062000000
 NUMBER_OF_FRAMES-eng: 2
 NUMBER_OF_BYTES-eng: 53
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:4(ger): Subtitle: subrip
 Metadata:
 title : de
 BPS-eng : 27
 DURATION-eng : 01:54:16.482000000
 NUMBER_OF_FRAMES-eng: 933
 NUMBER_OF_BYTES-eng: 23256
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:5(fre): Subtitle: subrip
 Metadata:
 title : fr
 BPS-eng : 0
 DURATION-eng : 01:40:51.510000000
 NUMBER_OF_FRAMES-eng: 21
 NUMBER_OF_BYTES-eng: 380
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:6(fre): Subtitle: subrip
 Metadata:
 title : fr
 BPS-eng : 29
 DURATION-eng : 01:54:19.902000000
 NUMBER_OF_FRAMES-eng: 806
 NUMBER_OF_BYTES-eng: 25098
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:7(spa): Subtitle: subrip
 Metadata:
 title : es
 BPS-eng : 2
 DURATION-eng : 00:03:21.201000000
 NUMBER_OF_FRAMES-eng: 3
 NUMBER_OF_BYTES-eng: 73
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:8(spa): Subtitle: subrip
 Metadata:
 title : es
 BPS-eng : 30
 DURATION-eng : 01:43:53.693000000
 NUMBER_OF_FRAMES-eng: 783
 NUMBER_OF_BYTES-eng: 24134
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:9(ita): Subtitle: subrip
 Metadata:
 title : it
 BPS-eng : 2
 DURATION-eng : 00:03:08.522000000
 NUMBER_OF_FRAMES-eng: 2
 NUMBER_OF_BYTES-eng: 67
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:10(ita): Subtitle: subrip
 Metadata:
 title : it
 BPS-eng : 27
 DURATION-eng : 01:54:16.649000000
 NUMBER_OF_FRAMES-eng: 784
 NUMBER_OF_BYTES-eng: 23506
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:11(por): Subtitle: subrip
 Metadata:
 title : pt
 BPS-eng : 27
 DURATION-eng : 01:54:16.649000000
 NUMBER_OF_FRAMES-eng: 784
 NUMBER_OF_BYTES-eng: 23202
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:12(por): Subtitle: subrip
 Metadata:
 title : pt
 BPS-eng : 2
 DURATION-eng : 00:03:08.522000000
 NUMBER_OF_FRAMES-eng: 2
 NUMBER_OF_BYTES-eng: 61
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:13(rus): Subtitle: subrip (default)
 Metadata:
 title : ru
 BPS-eng : 0
 DURATION-eng : 01:37:43.480000000
 NUMBER_OF_FRAMES-eng: 9
 NUMBER_OF_BYTES-eng: 420
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:14(rus): Subtitle: subrip
 Metadata:
 title : ru
 BPS-eng : 50
 DURATION-eng : 01:44:17.000000000
 NUMBER_OF_FRAMES-eng: 850
 NUMBER_OF_BYTES-eng: 39721
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:15(ukr): Subtitle: subrip
 Metadata:
 title : uk
 BPS-eng : 50
 DURATION-eng : 01:43:53.650000000
 NUMBER_OF_FRAMES-eng: 848
 NUMBER_OF_BYTES-eng: 39165
 _STATISTICS_WRITING_APP-eng: mkvmerge v50.0.0 ('Awakenings') 64-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2020-09-10 05:08:02
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream mapping:
 Stream #0:0 -> #0:0 (hevc (native) -> h264 (h264_nvenc))
 Stream #0:1 -> #0:1 (copy)
 Stream #0:2 -> #0:2 (subrip (srt) -> ass (ssa))
Press [q] to stop, [?] for help
[h264_nvenc @ 000002306685ccc0] 10 bit encode not supported
[h264_nvenc @ 000002306685ccc0] Provided device doesn't support required NVENC features
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!



Can anyone spot what I'm missing ?


-
avcodec/mediacodecdec : wait on first frame after input buffers are full
25 avril 2018, par Aman Guptaavcodec/mediacodecdec : wait on first frame after input buffers are full
The output_buffer_count==0 special case is no longer required, and
can cause spurious EAGAIN to surface to the user when input buffers
are filled up. Since the caller now knows if the decoder is accepting
new input (via current_input_buffer>=0), let the wait parameter
control whether we block or not.Signed-off-by : Aman Gupta <aman@tmm1.net>
Signed-off-by : Matthieu Bouron <matthieu.bouron@gmail.com>